Carbureter water-supply.



H. W. FALK & W. K. ANDREW.

CARBURETER WATER SUPPLY.

APPLlCATlON FILED NOV. 3, 19H.

1, 142,877. Patented June 15, 1915.

2 SHEETS-SHEET l.

THE NORRIS PETERS CO., PHOTD-LITHQ. WASHINGTON. D. C

H. W. FALK & W. K. ANDREW.

. CARBURETER WATER SUPPLY.

APPLICATION FILED NOV. 3. 1911.

Patented June 15, 1915.

2 SHEETS-SHEET}.

THE NORRIS PETERS C0,. FHOTO-LITHO.. WASHINGTON, D. C.

HERMAN W. FALK AND WILLIAM K. ANDREW, OIE IVLILWAUKEE, WISCONSIN,ASSIGNORS TO M. RUIVIELY COMPANY, OF LAPORTE, INDIANA, A CORPORATION OFINDIANA.

CARBURETER WATER-SUPPLY.

Application filed November 3, 1911.

To all whom it may concern Be it known that we, HERMAN W. FALK andWILLIAM K. ANDREW, citizens of the United States, residing at Milwaukee,in the county of Milwaukee and State of WVisconsin, have invented acertain new and useful Improvement in Carbureter ater-Supplies, of whichthe following is a specification.

Our invention relates to improvements in water supply for carbureters,and is illustrated diagrammatically in one form in the accompanyingdrawings, wherein- Figure l is a section through a carbureter; Fig. 2 isa sectionalong the line 22 of Fig. 1; Fig. 8 is a section along theline,33 of Fig. 2; Fig. 4 is a section along the line 4& of Fig. 2.

Like parts are indicated by the same letters in all the figures.

The vacuum, mixing or carbureting chamber A is provided at one end withthe air intake port A and at the other end with the mixture dischargeport A The cage B made up of the annular members B held in position andspaced one from the other by the spider frame B is concentric with theport A The pin B projects upwardly from the center of the spider armframe and is surrounded at its base adjacent the spider arm frame by thefiber washers B The sleeve 13 is slidably mounted upon the pin B andcarries the diaphragm B from which projects upwardly the cage B slightlylesser in diameter than the cage B and made up of the spaced annularmembers B The mixture discharge port A communicates with the valvechamber G in which are located the two balanced poppet valves C Ccarried by the slidable valve stem C and located in opposition to thevalve seats C C in the walls C C The valve stem C is reciprocated by anysuitable controlling means operating through the connecting rod C Theoil and water is fed to the carbureting chamber through the conicalvalve nozzles D D the supply to which from the chambers D D iscontrolled by the adjustable needle valves D D The chambers D D areprovided each with the upwardly projecting conical partition walls D Dwhich walls are each provided with the perforations D D through whichproject the needle valves D D The water reservoir D is provided with thewell D in the Specification of Letters Patent.

Patented June 15, 1915.

Serial No. 658,312.

side wall thereof, having the port D discharging from its bottom intothe bottom of the chamber D and is provided with the well Dcommunicating with the chamber D above the partition wall and having thehorizontally disposed discharge pipe D in communication therewith.

The cylindrical casing E is mountedupon the cylinder water jacket E andcontains the upwardly projecting cylindrical pipe E- communicating bymeans of the passage E with the interior of the water jacket. The casingE is closed at the upper end by the screw threaded plug E which islocated slightly above the top of the pipe E thus leaving'acommunication between the inside 7 and outside of the pipe at its top.The pipe E connects the water circulating pump not shown with the casingE.- The pipe E leads from the casing E slightly below the top of thepipe E through the port E in the wall of the carbureter discharging intothe well D The funnel or lip E which is located beneath the end of thedischarge pipe D projects outwardly and upwardly from the wall of thecylinder E and communicates with the passage E which discharges directlyinto the interior of the pipe E The use and operation of our-inventionis as follows: As the engine operates it draws air through the mixingchamber in the usual manner, the air being there mixed with'thehydrocarbon and water to form a combustible mixture. In order that amixture of the correct richness may be obtained, it is necessary thatthe level of the liquid in each one of the reservoirs be maintainedconstant. This level in my preferred form is maintained constant bymaintaining a constant flow of liquid from the lower portion of thereservoir chamber up through the perforations in the dividing wall andpump, fills the pipe and overflows, passing down about the exteriorthereof. It will be observed that the pipe and drum are of. suchdimensions that there will be a constant flow of water over the top ofthe pipe,

thus the water level will be maintained constant at approximately thetop of the pipe. The horizontally disposed pipe which communicates withthe stand pipe slightly below the top thereof will permit water tooverflow into the well in the reservoir wall. The water will pass downthrough this well and be discharged into the interior of the reservoirthrough the port near its base. Since the pipe leading from the cylinderis located above the top of the partition wall, it will be evident thatthere will be a'sufficient head to cause the water to constantly flowout from this partition Wall into the discharge well, whence it isreturned through the discharge pipe and funnel back to the drum outsideof the central pipe and thence to the pipe E By this means we areenabled to maintain a constant head of water in the valve reservoirsince the water is fed through this reservoir into the cylindricalcasing and dischar es from the cylindrical casing back to thecirculating pump and thence to the pipe within the cylindrical casingwithout waste and without any appreciable variation in the head owing toany change in the temperature of the water or the speed at which it isdischarged by the circulating pump.

While the water fed from the cylinder jacket to the stand pipe will bemore or less heated by the heat of the engine, still the large mass andthe large exposed area in proportion to the volume of the cylindricalcasing will to a large extent permit the water to be cooled. In additionto this, the

\ relatively small amount of water fed from the casing to the carbureterreservoir will be cooled as it passes to the reservoir and will becooled by the reservoir itself, and by the fresh fuel fed to the other,namely, the fuel reservoir. The result will be that any heating efi'ectwill be practically negligible, and this is as it should be, asapplicants device is a so-called cold carbureter, and is designed foruse with the heavier hydrocarbons or liquid fuels. Thus the jackettemperatures cannot of course have any practical effect upon theatomization or mixing of the heavy fuels used, and

even if a maximum temperature of over 200 were maintained for the entireperiod and this is of course not possible or desirable, still therewould be no vaporizing efiect.

The water is fed up through the passage E by the pump which circulatesthe water in the engine jacket. This water may be fed or discharged byany other suitable means, but in one preferred form of device we usethis pump, and since we have only shown a portion of the engine we havenot illustrated this pump, although it may be any usual watercirculating pump centrifugal or otherwise. The water passes up throughthe column E and fills it and part of it flows over the top of thecolumn through the space E and out through the pipe E Some of the water,however, will flow through the pipe E which passes through the part Ethe space E and the wall of the chamber E to the well D The water willpass down through the well D substantially filling it and pass throughthe port D and into the chamber D Here the water again divides. Part ofit enters the aperture and part of it passes through the screen aboutthe base of the valve, through the aperture closed by the stream, uparound the central housing, through the apertures in the top of thecentral housing, down past the valve D and thence to the carburetingchamber. The water which does'not pass through the valve will pass upover the top of the ring 1)", down the wall D into the well I), beingdischarged from the bottom of the well through the pipe I) to the cup Eand thence into the chamber or space E and out through the pipe E. Itwill be noted that the space E will not be completely filled with water,owing to its very large cross sectional area relative to the column Eand owing to the fact that a large quantity of the water passes outthrough the pipe E. As a matter of fact the water merely trickles downor flows down in a more or less thin annular sheet or cylinder along theoutside of the column E to the bottom of the space E? and thence isdischarged. By this arrangement it will be observed that we are able tosupply a very closely regulated amount of water to the mixing chamber ofmy carbureter. Our carbureter is designed for use with engines wherevery close regulation is absolutely essential. fuel oils, solar oil,kerosene and the like and therefore it is much more important thatexactly the correct proportions of oil and water be fed to thecarbureting chamber than in the case of the usual type of gasoleneengine. As is well known, it is desirable to burn water in the enginetogether with the heavier oils for reasons which we will not discuss,but experience has shown that while the correct amount of water will bevery beneficial an incorrect amount is disastrous. For this reason it isessential that the closest kind of regulation of the water supply beeffected, and this is what our device does. It gives a constant waterlevel from which the water may be fed to the carbureting chamber nomatter what the temperature of the water, the pressure of the water orthe velocity of the water in the engine jacket or other supply may be.As such it has proved of the greatest importance.

lVe claim:

1. A constant level liquid supply means comprising a stand-pipe open atthe top, a

It is designed to burn the heavy cylindrical housing mounted on andsurrounding the upper end of the pipe, an outflow pipe discharging fromthe lower portion of said housing, a return tunnel in the Wall of saidhousing below the top of the stand-pipe.

2. The combination with a constant level reservoir of means for feedingliquid thereto and withdrawing it therefrom, said means comprising astand pipe open at both ends, a housing surrounding the upper end ofsaid stand pipe, said housing being closed at its lower end, a dischargefrom the bottom of said housing, a cup in the wall of said housingadjacent its lower end, a pipe communicating with the interior of thestand pipe adjacent its upper end and passing through the space betweenthe stand pipe and the 7 wall of the housing and discharging to theconstant level reservoir, and a pipe leading from the constant levelreservoir and terminating above the cup in the wall of said housing.

3. 'Means for supplying a liquid to a constant level reservoircomprising a stand pipe, means for conducting water from'the interior ofsaid stand pipe at a point immediately below its top to the constantlevel reservoir, said stand pipe being open at its top, a housing closedat the bottom surrounding said stand pipe, a discharge from the bottomof said housing, and a discharge from the constant level reservoir tosaid housing at a point intermediate its top and bottom.

HERMAN W. FALK. WILLIAM K. ANDREW. Witnesses:

E. A. WUsKER, C. F. HARMON.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. 0. I

